Incandescent-lamp socket.



' No. 737,310, .PATENTB'D AUG. 25 1903.

J. L. YOST & 0.3. ,KENNEY.

INGANDESCENT LAMP SOCKET. APPLICATION FILED Jmmm, 1903.

3 NOMODEL UNITED STATES JOSEPH L. YOST AND OlVEN KENNEY, OF TOLEDO, OHIO, ASSIGNORS TO .Patented August 25, 1903.

PATENT OFFICE.

THE YOST ELECTRIC MANUFACTURING COMPANY, OF OHIO.

lNCANDESCENT-LAMP-SOCKET.

SPECIFICATION forming part of Letters Patent N o. 737,310, dated August 25, 1903. Application filed June 12,1903. Qsf iainu. 161,129. in. model.)

To all whom it may concern:

Be it known that we, JOSEPH L. YosT and OWEN E. KENNEY,' citizens of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Incandescent-Lamp Sockets; and we do hereby declare the following to be 'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to certain new and useful improvements in incandescent-lamp sockets of that type shown and described in Letters Patent No. 698,394, granted to the Yost-Miller Company, as assigneeof. L. P. Dixon, on the 22d day of April, 1902.

Our invention has for its object to simplify the construction shown and described in said Letters Patent, so that the several parts may be more readily assembled and when assembled and secure in fixed relation shall constitute a more rigid relation between the two blocks of insulating material and theconductor-plates. 7

Our invention also has for its object toprovide novel means for insulating the conductor-plates one from the other.

With these ends in view our invention con-v sists in the details of construction and arrangement hereinafter more fully described;

In order that those skilled in the art to whch ourinvention pertains may know how to make the same and understand its advantages, we will proceed to describe the construction thereof, referring by numerals to the accom-.

panying drawings, in which- Figure 1 is a perspective of the socket removed from the usual metallic shell and base. Fig. 2 is a central vertical section taken on the line at a: of Fig. 3. Fig. 3 is a plan view of the lower insulator block or section of the switchcontaining barrel with the switch mechanism therein and the connecting-posts shown in section. Fig. 4 is a vertical section taken on the line y y of Fig. 3, and Fig. 5 is a plan view of the adjacent faces of the two insulator blocks or sections of the contain- 7 ing-barrel.

Similar reference-numerals indicate like parts in the several figures of the drawings. 1 represents the upper block or section of insulating material constituting the barrel in ,which the switch mechanism is located, and 2' represents the lower block or section. The

upper block 1 is formed with diametric semicylindrical seats 3 and 4 for the reception of the spindle of the switch-key5 and a recess 6 for a'washer 7 on the' key-spindle. 8 is a transverse recess or chamber for the reception of the cam 9 of the key-spindle and for the upper end of one of the circuit-wire posts, and 10 is a radial recess or chamber for the reception of the upper-end of the other circuit-wire posts. The lower block is formed with a diametric recess. or chamber 11, similar to the chamber 8 of the upperblock, and with a low vertical transverse wall 12, and 13 14' are seats similar to corresponding seats 3 and4=of blockl. I

14 is a peripheral'recess or chamber similar to the chamber 10 of the upper block 1, and

' 15 is a peripheralvertical mortise constituting a seat for the lower portion of one of the circuit-wire posts 16, all similar to the construction shown and'described in a concurrent application filed by us as Case A and bearing Serial No.-161',128.j 'The two blocks 1 and 2 are secured together by the circuitwire posts 16 and 17 and'are secured to the 'lampconnectiou l8,'and the electrical connections and switch mechanism are all such as described in the application referred to.

19 is a vertical wall between the chambers 11 and 14 of the lower block2, in which is a gateway or passage20. The adjacent or opposite ends of the wall '19 are formed with a vertical V-shaped groove 21," within which is located a piece of mica or other insulating material 22, which constitutes a' thorough insulation between the chambers 11 and 14- being formed with the gateway or passage 20' gives to the two adjacent ends of the wall greater strength and stability than would exist in a continuous and necessarily-attenuated wall, such as shown in the Letters Patenthereinbefore referred to, and the presence of the mica or other insulating material located within the vertical grooves 21 of the wall is equally effective as an insulator, as the continuous Wall therein shown and in the manufacture of theinsulator-block the wall 19 is more economically and successfully made than would be the case of a continuous wall, which owing to its necessary fragility is liable to fracture in molding the same and when in use.

While in our present application we show and describe features of construction illustrated and described in a concurrent application filed by us and bearing Serial No. 161,128 and have found them of advantage in connection with the details of construction constituting the subject-matter of our present application, variations may be made therefrom without departing from the spirit of our invention, which resides in the generic idea of a partition or wall between the chambers, in which the circuit-wire posts are located, having a gateway or passage closed by a removable insulating-shield of mica or similar material.

' Having described the construction and advantages of our improvement, what we claim as new, and desire to secure by Letters Patent, is-- 1. In an incandescent-lamp socket such as described in combination with an upper insulating-block formed with suitable recesses or chambers for the switch mechanism and circuit-wire posts, the lower block formed with similar recesses or chambers and with a partition or wall between such recesses or chambers havinga gateway or passage therein, closed by a removable shield of mica or similar material, substantially as hereinbefore set forth.

2. In an incandescent-lamp socket such as described, the lower insulator-block formed with the chambers or recesses 11 and 14 with an intermediate Wall 19 having a passage 20 and vertical V-shaped grooves 21 in the adjacent ends of the wall, adapted to receive an insulating-shield of mica or similar material, substantially as hereinbefore set forth.

In testimony whereof we aflix our signatures in presence of two witnesses.

- J OS. L. YOST. V

OWEN E. KENNEY. Witnesses:

IDA RICKET, CHAS. A. Yosr. 

